If you are regularly falling asleep in front of the TV, this is one of the signs that you are getting old.

And it's not the only one, according to research. There's the groan we make when we bend down to pick something up off the floor, forgetting people's names and choosing comfort over style, reports the Mirror .

A poll of 2,000 adults also found needing an afternoon nap and finding it tricky to sit cross-legged are indicators you’re getting on a bit.

Complaining more often, declaring you’re "gasping" for a cup of tea and feeling flattered when you get asked for ID when visiting a bar also made the list.

Other warnings you’re over the hill include preferring a night in with a board game, knowing your alcohol limit and struggling with technology.

A bad back is a sign you are getting old, says the research (Image: Getty Images)

The study, commissioned by Future You to highlight the benefits of Turmeric+ tablets, also found feeling stiff and talking about your joints a lot featured in the top fifty signs you’re growing old.

A spokesman said: “It’s fascinating to see nearly half the nation considers joint pain and stiffness a sign of growing age.